Description / Abstract:

INTRODUCTION

This test procedure describes a method for the determination of
temperature cycling effects or the temperature dependence of
attenuation on optical fiber units, cables, cable assemblies,
connectors, and/or other passive fiber optic devices. This
procedure tests the ability of the component to withstand changes
in temperature of the surrounding atmosphere that may be
encountered during operation. Measurement of optical fiber is
covered in FOTP- 234 (TIA-455-234) "IEC 60793-1-52 Optical Fibres -
Part 1-52: Measurement Methods and Test Procedures - Change of
Temperature". The simulation of temperature shock testing is
covered in FOTP-71 (EIA/TIA-455-71A), "Procedure to Measure
Temperature-Shock Effects on Fiber Optic Components."

Typical indications of damage resulting from this test are:

An excessive temporary or permanent change in optical
throughput which exceeds specified limits as defined in the Detail
Specification.

Broken parts, cracks, blisters, etc. in materials or
accessories.

Inability to mate or unmate, if the sample is a connector.

Damage to seals or "O" rings, if the sample is a connector or
device.

The primary use of the test procedure is evaluation of optical
fiber cables and connectors. Testing of optical fibers shall use
FOTP-234, as noted above. Testing of fiber units shall be
accomplished using the test procedure in the main test.
Hereinafter, all uses of "cable" shall be interpreted to apply to
fiber units to the extent they are applicable. Testing of optical
fiber connectors and other devices has been moved to Annex A
(normative) in order to streamline the test methods. This Annex
comprises the test procedure of FOTP-3, revision A.